Floor height estimation and calibration of a mobile device

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United States of America Patent

PATENT NO 11733038
SERIAL NO

17646810

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Abstract

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Methods and machines involve detecting when a mobile device is in a first area and a second area at different times, collecting pressure data from the mobile device and reference sensor(s) to estimate altitudes of the mobile device within the first area and the second area, collecting terrain altitudes associated with the first area and the second area, and using a difference between the estimated altitudes and a difference between the terrain altitudes to determine a height of a floor. The estimated floor height may be used to calibrate a pressure sensor of a mobile device.

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Patent Owner(s)

  • NEXTNAV, LLC

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dormody, Michael San Jose, US 66 166
Han, Guiyuan San Jose, US 44 97
Nagarajan, Badrinath South San Francisco, US 49 123
Raghupathy, Arun Ramagondanahalli, IN 108 1558

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